1 Chronicles 4:43

They smote the rest of the Amalekites Not destroyed by Saul, or David, or his successors. That dwelt there unto this day Until the Babylonish captivity, or the time next after it, when these books were written. For, although the main body of the tribe of Simeon, dwelling in Canaan, were carried into captivity, yet this small remnant of them, having removed their dwellings, and being planted In mount Seir, which lay southward from Judah, might possibly be continued and preserved in those parts, when their brethren were gone into captivity.